Although hops appears to be generally safe for most people when taken in the recommended daily amount, it can cause side effects such as drowsiness and sedation. Be careful if you are driving, operating heavy machinery, or doing any other activities that require alertness after taking hops.
The hops plant contains pollen, which may cause allergic reactions such as skin irritation, asthma, hay fever, and lung sensitivities.
Stop using hops immediately and see a doctor if you have an allergic reaction. Do not use hops if you are allergic to it or to any plants from the Cannabaceae family (e.g., peanuts, chestnuts, bananas).
Other medications that may interact with hops include:
- central nervous system (CNS) depressants (e.g., sedatives)
- estrogen (e.g., tamoxifen, hormone replacement therapy)
Hops should not be taken with other sedative agents (i.e., agents that can slow brain function) because it may increase the chance of side effects. This includes prescription medications and natural products or supplements with sedative effects. Avoid alcohol while taking hops.
Contact your doctor if sleeplessness persists continuously for more than 4 weeks, or if symptoms persist or worsen.
Consult your doctor if you are pregnant or breast-feeding, have depression or depression-related conditions, or if you have hormone-sensitive conditions. Stop taking hops 2 weeks before an elective surgery.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.